Bug 234887 - [exp-run] with Clang modified to emit DWARF4 by default
Summary: [exp-run] with Clang modified to emit DWARF4 by default
Status: Closed FIXED
Alias: None
Product: Ports & Packages
Classification: Unclassified
Component: Ports Framework (show other bugs)
Version: Latest
Hardware: Any Any
: --- Affects Only Me
Assignee: Ed Maste
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2019-01-11 21:35 UTC by Ed Maste
Modified: 2019-01-25 14:47 UTC (History)
1 user (show)

See Also:
antoine: exp-run+

Attachments
Default to DWARF4 in FreeBSD 12 and later (1.34 KB, patch)
2019-01-11 21:35 UTC, Ed Maste 		no flags Details | Diff
View All Add an attachment (proposed patch, testcase, etc.)

Note You need to log in before you can comment on or make changes to this bug.
Description Ed Maste freebsd_committer freebsd_triage 2019-01-11 21:35:48 UTC 
Created attachment 201046 [details]
Default to DWARF4 in FreeBSD 12 and later

I would like to have Clang emit DWARF4 by default and would like to see if any ports will be affected by the change.

Review: https://reviews.freebsd.org/D17930
Patch attached.
Comment 1 Antoine Brodin freebsd_committer freebsd_triage 2019-01-25 09:25:07 UTC 
Exp-run looks fine
Comment 2 commit-hook freebsd_committer freebsd_triage 2019-01-25 14:47:14 UTC 
A commit references this bug:

Author: emaste
Date: Fri Jan 25 14:46:14 UTC 2019
New revision: 343429
URL: https://svnweb.freebsd.org/changeset/base/343429

Log:
  clang: default to DWARF 4 as of FreeBSD 13

  FreeBSD previously defaulted to DWARF 2 because several tools (gdb,
  ctfconvert, etc.) did not support later versions.  These have either
  been fixed or are deprecated.

  Note that gdb 6 still exists but has been moved out of $PATH into
  /usr/libexec and is intended only for use by crashinfo(8).  The kernel
  build sets the DWARF version explicitly via -gdwarf2, so this should
  have no effect there.

  PR:		234887 [exp-run]
  Reviewed by:	markj
  Sponsored by:	The FreeBSD Foundation
  Differential Revision:	https://reviews.freebsd.org/D17930

Changes:
  head/contrib/llvm/tools/clang/lib/Driver/ToolChains/FreeBSD.cpp
  head/contrib/llvm/tools/clang/lib/Driver/ToolChains/FreeBSD.h
Comment 3 Ed Maste freebsd_committer freebsd_triage 2019-01-25 14:47:31 UTC 
Thanks for the exp-run Antoine.